new x86-64 CPUs from VIA!!!
Written by: psychoman - 21:10 Jan-03-2018

Well if you are tired of AMD and Intel being the only companies to choose from when it comes to desktop and laptop CPUs, rejoice as a new player has come on the board - VIA.

It appears they own a license to x86-64 and have made laptop CPUs on the older, but now much cheaper 28nm process node. These CPUs are true 8 cores running at 2.0-2.4Ghz with the chance that the IPC will be quite lower than Ryzen(NOT going to reference intel due to the performance problems happening now), but probably higher than the bulldozer family CPUs and should be really cheap.

Personally it sounds great, cheap good enough 8 core CPUs for laptops are great for work and multi-tasking and probably some light to medium-heavy games. No info on the GPUs though.

 

Source: http://www.guru3d.com/news-story/via-to-return-to-cpu-market-with-zhaoxin-processors.html


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"NOT going to reference intel due to the performance problems happening now"


These problems you refer to affect everyone, not just Intel. Literally the only thing that was Intel specific was the firmware needed updating and that was a couple days before meltdown and spectre grabbed our attention.

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yes, but others do NOT have supposed memory leak that intel has, their performance so far will most-likely NOT suffer, sadly everything that is given to the public is on a high abstraction, so I can NOT dig specific architectural flaws anywhere and that's for obvious reasons, I mean it would dumb to make the exploit detailed to the public.

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Yes… they do. What do you not understand about this? "so I can NOT dig specific architectural flaws anywhere and that's for obvious reasons, I mean it would dumb to make the exploit detailed to the public" Did you not read the thing I sent you? We already know this stuff in detail. Any CPU with predictive capabilities is affected. So any CPU from the early 90s to now, regardless of manufacturer is affected. Only a few exceptions like specialized chips for defense or parallel processors, like the PS3 for F-35 Lightning II, are safe because they either take this into account or operate on different fundamentals.

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I have NOT seen what you sent me, sorry, so many replies I miss some.
What you are saying is that any CPU with branch prediction is affected? Damn that's crazy. The only commercial CPUs from the 90s till now without branch prediction are the Cyrix CPUs, which never got around a working branch prediction.


Damn…

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Yes. The issue is the CPU dumps its predictive results to the cache regardless of whether or not it is correct. Since it is not correct, then it will be overwritten in the cache but it is dumped and collected before that happens. Manufacturers need to have a series of transistors to sort which data get written to the cache or not. This means a slight redesign to the CPU, meaning it can not be patched. You can try and patch it, but you cannot fix the source of the problem via software.

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Yes I am more than aware of how branch prediction works, especially on the x86-64 ISA designs XD

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Wasn't explaining how branch prediction works but OK.

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partly you did.

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I was describing how the CPU uses the cache, not how CPU prediction works.

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Predictions are cached in the l1 or the registers for reuses, they are usually 8, 12, 16, 24 and 32 bit, the most frequently used that is, others are dumped.

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Very nice…. in a way, this is kinda like the return of Cyrix…. I welcome them back in, missed them!

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Yes, Cyrix were quite good for the time, I studied their first two architectures in 6th grade, the 83D87 and 83S87 or something like that, there was a nice book it.


Too bad they did NOT have enough funds to jump on the newer process node, because their new at the time architecture design was better(if there were no incompatibilities which they were minimal at that point) than both the K6 and Pentium II.

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Plus the fact that intel in the 70s and especially 80s and 90s was suing everybody left and right, which made Cyrix lose a lot of money and many others went under as well… it's a miracle that AMD managed to survive and actually thrive.

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